Wind power generation control device and wind power generation control method
A control device, a technology for wind turbines, applied in the control of wind turbines, wind energy generation, frequency and voltage control of generators, etc., can solve problems such as the inability to effectively obtain optimal electricity
Inactive Publication Date: 2012-04-25
ZEPHYR
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Problems solved by technology
[0009] However, with regard to power control in a relatively low wind speed range of about 10 (m / s) or less, there is a problem that the optimal amount of power corresponding to the wind speed cannot be effectively obtained.
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[0025] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0026] figure 1 It is a block diagram showing a wind power generation control device to which the present invention is applied.
[0027] exist figure 1 Among them, the wind power generation control device 1 to which the present invention is applied constitutes a wind power generation system that efficiently generates power by controlling a wind power generator 2 .
[0028] The wind generator 2 has a permanent magnet 21 and a three-phase winding 22, which converts the AC current generated by the rotation of the windmill rotor blade 20 whose inclination angle is fixed into a DC current through a rectifier 23, and provides it to the storage battery 24 and is connected to the storage battery 24. A load of 25. In addition, since the wind turbine rotor blade 20 has a fixed inclination angle, it has a simpler structure and fewer failures, making it easier to reduc...
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Provided is a wind power generation control device that controls a wind power generator that uses wind turbine blades having a fixed pitch angle. Said control device measures an output current and output voltage being outputted by the wind power generator, and the rotational speed of the wind turbine blades. On the basis of the measured present output current, output voltage, and rotational speed, the control device computes the output power at the rotational speed at that point in time, and controls the wind power generator on the basis of the computed output power and blade aerodynamic properties, which are properties inherent to the wind turbine blades. This makes it possible, in comparatively low wind-speed regions, to efficiently obtain the optimum amount of power corresponding to the wind speed. Also provided is a wind power generation control method for controlling the aforementioned wind power generator.
Description
technical field [0001] The present invention relates to a wind power generation control device for controlling a wind power generator converting wind power into electric power and a wind power generation control method for controlling the wind power generator. Background technique [0002] Conventionally, wind power generators that convert wind power into electric power have attracted attention as non-polluting power generating devices and have been put into practical use. In particular, small wind turbines with a rated output of several thousand watts (kW) are used as power sources for lighting fixtures in businesses, schools, and general households, as heaters for plastic greenhouses, and as measuring devices for temperature and humidity. Power supply, or power supply for street lamps such as shopping streets and arterial roads. [0003] When the rotational speed of the windmill increases due to the increase of wind speed in such a small-sized wind power generator, there ...
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IPC IPC(8): F03D7/02H02P9/00
CPCY02E10/723H02P9/08H02P9/006F03D7/0272H02P9/44F05B2270/304H02P3/22H02P9/48F05B2270/1033Y02B10/30H02M1/0085Y02E10/72Y02E10/76
Inventor 伊藤瞭介大久保隆典近重唯章山崎高士松宫煇
Owner ZEPHYR